For a free, one-page adventure, Cattledash is great. I found it serves as a solid introduction to the regularly used mechanics and it was a great first adventure for my players. Very fun, hectic concept!
Ran it twice now. Always very good as a short 1~ hour intro adventure. Gotta make sure the PCs actually take the time to investigate some places though.
Had a blast running this for my group. It was so much fun.